What are the best locations to travel to between Munich and Rome and in Scandinavia

So my partner and I are getting married at the end of June this year and have booked tickets to Europe for a 4 week honeymoon!

We land in Munich on June 27 and then flying out back to Melbourne, Australia on July 21.

My partner is an Assassins Creed fan and is super keen to visit Florence and Venice and obviously Rome. Weve been told Cinque Terre is awesome and wed definitely like to take it easy the first few days and relax on a beach somewhere! We are both very inspired by photos we see of landscapes in Scandinavia so were keen on checking out places like Lofoten in Norway and the like!

So in short, our aim is 1 week in Italy and the rest is wherever in Scandinavia!

What would be the best plan of attack to get from Munich into Italy and then up into Scandinavia somewhere?